The interplay of the different mechanisms is studied in detail. Moreover, although general phenomenological consequences of a large misalignment angle were studied in Ref. [1]}, we will identify the main novel consequences that follow from the scenario under discussion.
On the phenomenological arena, we discuss the implications of the \(Z_{\cal N}\)  reduced-mass axion
for axion DM searches, namely those experiments that rely on the
hypothesis that an axion or ALP sizeably contributes to the DM density. More specifically, the experimental
prospects to probe its coupling to photons,
nucleons, electrons and the nEDM operator are considered. The analysis sweeps through the whole mass range down to ultra-light axions (with masses \(m_a \ll 10^{-10}\)  eV), within the \(Z_{\cal N}\)  axion framework under discussion. The present and projected sensitivity to the number of possible mirror world \({\cal N}\)  will be determined, and the constraints obtained will be compared and combined with those stemming from experiments which are independent of whether axions account or not for DM [2]}.
